Damn, I need to read the comments before I start finding my own solutions. Anyways I created this less "dirty" fix, with a focus addition, which actually makes it a tad better imo :P.
Mortilus version does work however.

Anyways in the file: ReURL.lau at line 41-45 you will find this:

Code:

if (not ChatFrameEditBox:IsShown()) then
ChatFrame_OpenChat(url, DEFAULT_CHAT_FRAME);
else
ChatFrameEditBox:Insert(url);
end

Originally posted by AnduinLothar That would mean you have some erronious hook calling ChatFrame_OnEvent with arg1 as a table. I'm pretty sure WoW never does that on its own, you might try dissabling addons to figure out what causes it.

Got a custom piece of code in my modified oChat that does this already.

That would mean you have some erronious hook calling ChatFrame_OnEvent with arg1 as a table. I'm pretty sure WoW never does that on its own, you might try dissabling addons to figure out what causes it.